Mandevilla plant named ‘Red Velvet Petite’

ABSTRACT

A distinct cultivar of Mandevilla plant named ‘Red Velvet Petite’, characterized by its compact growth habit; short internodes; relatively small, glossy, dark green leaves; flowers that are dark pink in color when temperatures are less than 29° C. and intensify to red in color when temperatures are greater than 29° C.; and tolerance to low and high temperatures.

BACKGROUND OF THE INVENTION

The present Invention relates to a new and distinct cultivar ofMandevilla plant, botanically known as Mandevilla hybrid, andhereinafter referred to by the name ‘Red Velvet Petite’.

The new cultivar is a product of a planned breeding program conducted bythe Inventor in Hawthorne, Fla. The objective of the breeding programwas to develop new compact Mandevilla cultivars with attractive andunique flower colors.

The new cultivar originated from a cross-pollination of the Mandevillahybrid cultivar PSJAM LP1, disclosed in U.S. Plant Pat. No. 10,611, asthe female, or seed, parent with an unnamed selection of Mandevillahybrid, not patented, as the male, or pollen, parent in Hawthorne, Fla.,in November, 1996. The new cultivar was discovered and selected by theInventor as a flowering plant within the progeny from thiscross-pollination in a controlled environment in Hawthorne, Fla., in1999. The new cultivar was selected on the basis of its compact growthhabit.

Asexual reproduction of the new cultivar by terminal cuttings taken inHawthorne, Fla, since spring, 2000, has shown that the unique featuresof this new Mandevilla are stable and reproduced true to type insuccessive generations.

SUMMARY OF THE INVENTION

Plants of the cultivar Red Velvet Petite have not been observed underall possible environmental conditions. The phenotype may vary somewhatwith variations in environment such as temperature, light intensity,daylength, humidity, water status and/or fertilizer rate and typewithout, however, any variance in genotype.

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘Red Velvet Petite’. Thesecharacteristics in combination distinquish ‘Red Velvet Pettite’ as a newand distinct cultivar:

1. Compact growth habit.

2. Short internodes.

3. Relatively small, glossy, dark green leaves.

4. Flowers that are dark pink in color when temperatures are less than29° C. and intensify to red in color when temperatures are greater than29° C.

5. Tolerance to low and high temperatures.

Plants of the new Mandevilla differ primarily from plants of the femaleparent cultivar PSJAM LP1 in flower color as flowers of plants of thecultivar PSJAM LP1 are light pink in color. In addition, in side-by-sidecomparisons conducted by the Inventor in Hawthorne, Fla., plants of thenew cultivar had smaller leaves and shorter internodes than plants ofthe cultivar PSJAM LP1. Plants of the new cultivar differ from plants ofthe male selection primarily in flower color.

Plants of the new Mandevilla can be compared to plants of the cultivarRed Velvet, disclosed in U.S. Plant patent application Ser. No.09/664,134. In side-by-side comparisons conducted by the Inventor inHawthorne, Fla., plants of the new Mandevilla had smaller leaves,shorter internodes and smaller and fewer flowers than plants of thecultivar Red Velvet.

Plants of the new Mandevilla can also be compared to plants of thecultivar Alice DuPont, not patented. In side-by-side comparisonsconducted by the Inventor in Hawthorne, Fla., plants of the newMandevilla had smaller leaves, shorter internodes and smaller flowersthan plants of the cultivar Alice DuPont. In addition, plants of the newcultivar and the cultivar Alice DuPont differ in flower color.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearanceof the new cultivar, showing the colors as true as it is reasonablypossible to obtain in colored reproductions of this type. Colors in thephotographs may differ slightly from the color values cited in thedetailed botanical description which accurately describe the colors ofthe new Mandevilla.

The photograph on the first sheet comprises a side perspective view of atypical plant of ‘Red Velvet Petite’.

The photograph at the top of the second sheet comprises a close-up viewof typical flowers and leaves of ‘Red Velvet Petite’.

The photograph at the bottom of the second sheet comprises a close-upview of a typical flower of ‘Red Velvet Petite’.

DETAILED BOTANICAL DESCRIPTION

In the following description, color references are made to The RoyalHorticultural Society Colour Chart except where general terms ofordinary dictionary significance are used. Plants used for thisdescription were about six to eight months old and grown in one-galloncontainers in a clear polyethylene-covered greenhouse in Hawthorne, Fla.during the spring. Day temperatures ranged from 29 to 35° C., and nighttemperatures ranged from 13 to 18° C.

Botanical classification: Mandevilla hybrid cultivar Red Velvet Petite.

Parentage:

Female, or seed, parent.—Mandevilla hybrid cultivar PSJAM LP1, disclosedin U.S. Plant Pat. No. 10,611.

Male, or pollen, parent.—Unnamed selection of Mandevilla hybrid, notpatented.

Propagation:

Type cutting.—Terminal cuttings.

Time to intiate roots, summer.—About 21 days at 26° C.

Time to initiate roots, winter.—About 30 days at 21° C.

Time to develop roots, summer.—About 60 days at 29 to 35° C.

Time to develop roots, winter.—About 70 to 80 days at 24° C.

Root description.—Numerous, thick, fibrous and freely branching.

Plant description:

Form.—Perennial evergreen flowering plant; twining vine; initiallyupright, then vining, requires support to maintain upright habit. Plantsare typically pinched about 3 months after planting to enhance lateralbranch development; potentially two lateral branches form at every node.

Plant height (length).—About 95 cm.

Plant diameter.—About 27 cm.

Vigor.—Moderately vigorous.

Lateral branches.—Length: About 95 cm. Diameter: About 3 mm. Internodelength: About 6.3 cm. Shape: Round in cross-section. Aspect: Initiallyupright, then trailing, requires support. Strength: Flexible, moderatelystrong. Texture: Very fine, white and dense pubescence. Color: Youngstems: Green, 144A. Mature stems: Green, 144A with slight anthocyanin,close to 59A.

Foliage description.—Leaves relatively small, simple, generallysymmetrical and long-persisting; opposite. Quantity per lateral branch:About 32. Length: About 9.8 cm. Width: About 4.6 cm. Shape: Elongatedoblong. Apex: Acute to cuspidate. Base: Cordate. Margin: Entire.Texture: Rugose, leathery, durable; both surfaces, very fine densepubescence. Luster: Upper surface, glossy; lower surface, dull. Venationpattern: Pinnate. Petiole length: About 1.3 cm. Petiole diameter: About3 mm. Color: Young and fully expanded foliage, upper surface: Darkgreen, darker than 147A. Young and fully expanded foliage, lowersurface: Green, 147B. Petiole: Light green, 144B.

Flower description:

Flower type and habit.—Single salverform flower; terminal or axillary;flowers face mostly outward. Flowers self-cleaning. Freely flowering,more than 30 flowers per plant develop during the flowering season.

Natural flowering season.—Spring until frost in the autumn; floweringcontinuous.

Flower longevity on the plant.—About one week.

Fragrance.—Faint, sweet.

Flowers.—Appearance: Flared trumpet, corolla fused, five parted; flowersstar-shaped; iridescent. Diameter: About 10.7 cm. Depth (length): About5.1 cm. Corolla tube length: About 4.6 cm. Throat diameter: About 2.1cm. Tube diameter, base: About 4 mm.

Flower buds (just before opening).—Length: About 6.7 mm. Diameter: About1.6 cm. Shape: Oblong. Color: Red purple, 57A.

Corolla.—Arrangement/appearance: Single whorl of five petals, fused intoflared trumpet; overlapping. Petal length: About 8.3 cm. Petal width:About 4.7 cm. Petal shape: Roughly spatulate. Petal apex: Acute tocuspidate. Petal margin: Entire; undulate, ruffled appearance. Petaltexture: Smooth, velvety. Color: Petal, upper surface, when opening andfully opened: At temperatures greater than 29° C.: Red, richer than butclosest to 45A to 45B; color fading to richer than but closest to 45B.At temperatures less than 29° C.: Dark pink, close to 58B or darker than58B. Petal, lower surface, when opening and fully opened: Attemperatures greater than 29° C.: Red, 45A to 45B. At temperatures lessthan 29° C.: Dark pink, close to 58B to 58C. Tube, fully opened: Red,45A to 46A; towards base, white, 155D. Throat, fully opened: Base,white, 155D; mid-section, white, 155D, and red to red purple, 45A to57A, longitudinal stripes; towards apex, white, 155D, and faint lightyellow, close to 4C to 4D, longitudinal stripes.

Sepals.—Arrangement/appearance: Five per flower in a single whorl;fused, campanulate; reflexed. Length: About 1.1 cm. Width: About 3 mm.Shape: Elongated, linear. Apex: Sharply acute. Margin: Entire. Texture:Smooth, slightly waxy. Color, upper and lower surfaces: Light green,144B to 144C.; towards apex, dark red, 53A.

Peduncles.—Length: About 1.75 cm. Diameter: About 2.5 mm. Angle:Twisted. Strength: Flexible, but strong. Color: Initially green, 144A,then dark red, 46A to 53A.

Reproductive organs.—Stamens: Quantity: Five; filaments fused tocorolla. Anther shape: Oblong, elongated. Anther size: About 5 mm by 1mm. Anther color: Light yellow, 10C to 10D. Pollen: None observed.Pistils: Quantity: One. Pistil length: About 1.7 cm. Stigma shape:Rounded. Stigma color: White, close to 155D. Style color: White, closeto 155D. Ovary color: White, close to 155D.

Seed.—Seed production has not been observed.

Disease resistance: Plants of the new Mandevilla have not been noted tobe resistant to pathogens common to Mandevilla.

Weather tolerance: Plants of the new Mandevilla have been observed to betolerant to rain and wind and tolerant to temperatures from 1 to higherthan 43° C.

It is claimed:
 1. A new and distinct cultivar of Mandevilla plant named‘Red Velvet Petite’, as illustrated and described.